[ 080/108] PM / Hibernate: Enable usermodehelpers in hibernate() error path
From: Greg KH <gregkh@linuxfoundation.org>
Date: 2012-03-30 22:43:57
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3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: "Srivatsa S. Bhat" <redacted> commit 05b4877f6a4f1ba4952d1222213d262bf8c132b7 upstream. If create_basic_memory_bitmaps() fails, usermodehelpers are not re-enabled before returning. Fix this. And while at it, reword the goto labels so that they look more meaningful. Signed-off-by: Srivatsa S. Bhat <redacted> Signed-off-by: Rafael J. Wysocki <redacted> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- kernel/power/hibernate.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c@@ -623,7 +623,7 @@ int hibernate(void) /* Allocate memory management structures */ error = create_basic_memory_bitmaps(); if (error) - goto Exit; + goto Enable_umh; printk(KERN_INFO "PM: Syncing filesystems ... "); sys_sync();
@@ -631,7 +631,7 @@ int hibernate(void) error = prepare_processes(); if (error) - goto Finish; + goto Free_bitmaps; if (hibernation_test(TEST_FREEZER)) goto Thaw;
@@ -663,8 +663,9 @@ int hibernate(void) Thaw: thaw_processes(); - Finish: + Free_bitmaps: free_basic_memory_bitmaps(); + Enable_umh: usermodehelper_enable(); Exit: pm_notifier_call_chain(PM_POST_HIBERNATION);